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Grokking the Coding Interview Patterns

Solution: Find Right Interval

Understand how to efficiently find the right interval for each segment in an array by using two min heaps. Explore how to manage start and end times, remove invalid candidates, and update results while optimizing for time and space complexity. This lesson reinforces heap usage for interval problems commonly seen in coding interviews.

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Statement

You are given an array of intervals where each interval is represented by a pair [starti,endi][start_i, end_i]. The startistart_i values are unique, meaning no two intervals begin at the same time.

The task is to find the right interval for each interval in the list. The right interval for an interval ii is an interval jj such that startj>=endistart_j >= end_i ...